Saturday, December 31, 2011

Chinese character triples having matching Pinyin endings including tones

Not sure if I'll stumble across any others like the following, but I heard this word used on a Taiwan show recently, and found its triple Pinyin "rhyme" interesting:

jìyìlì 記憶力 (faculty of) memory

The Pleco Chinese dictionary app, with its Wild search capability, could perhaps come up with more, but as with my earlier Chinese character pairings having matching Pinyin letters but different tones post, I find these things interesting when I come across them in daily life, rather than through calculated research.

Wednesday, December 28, 2011

Flashlight apps

Despite not having the blinding power of the iPhone's LED flash, a flashlight app on the iPod effectively illuminates the back panel of a PC CPU unit when I'm crawling on the floor, provides useful spot lighting at night in a car having relatively weak interior lighting, and illuminates enough of a dark room when I don't want to turn on a room light.

I have long used John Haney SW's free Flashlight app, which is currently at version 5.1 (15) 5.2 (as of 2/1/12). When the app cold starts, there is a brief company splash screen, followed briefly by the % brightness indicator, after which you can have a pure white display at maximum brightness (at least the way I've configured mine):

I often set the iPod to sleep shortly after using this app, so until I saw some Apple App Store reviews mentioning it, I had not really noticed how my iPod's normal brightness didn't return after quitting the app. That is to say, Flashlight overrides what is set in Settings > Brightness (Version 5.2 has an option to prevent this override for iOS 5.0 or later; I personally prefer the override.). I normally keep the iPod at about the "B" level of brightness (right around the B in the Brightness heading), which, versus a higher level, lengthens battery charge life:

I often lower the Flashlight app's % brightness to a similar level before quitting the app. The app's instructions point out that you can lock and unlock the device to restore your normal brightness setting (or double-press the Home button, then single-press the Home button), which would be more precise than my manual brightness approximation technique.

I usually keep 3 screen possibilities configured, between pairs of which I can "swipe" sideways to switch:
  • white
  • red (which I believe is the color least disturbing for one's eyes in the dark)
  • black (allowing rapid darkening of the display)
You can explore the additional entertainment-oriented screen options, but the app's utility to me is as a lighting tool. I will mention, however, that a strobe effect is available, which might be useful sometime(?).

Version 5.2 also added a way to show photos, but I had no success with it in a brief period of testing, and I reverted to 5.1, which I felt after a cold start had a slightly shorter delay before the flashlight effect comes on -- I want the app for light, as fast as possible!

I recently also installed the iHandy Flashlight Mini app (currently at version 1.0.3), which has an S.O.S. option.  Unlike John Haney SW's app, this flashlight app does not commandeer the iPod's brightness setting.  If you weren't already using the highest brightness setting on the iPod, you might want to do so before starting this app.

Below is a screenshot of it running an ad for another one of their products, iHandy Flashlight Free, which I tried out months ago but deleted in favor of John Haney SW's app. A review in Apple's App Store correctly points out that the ads are not shown in the preview pictures provided by the company.

The ad at the bottom is still displayed when you are using the flashlight functionality.  That detracts from the feel of the app, even if it has very limited effect on the illumination.  John Haney SW's app runs ads, but not smack-dab in the flashlight functionality.

This app also has a strobe function which functions somewhat differently from that in John Haney SW's app.

The compass function does not seem to be available on the iPod.  That may only operate on an iPhone.

If you have more than one iHandy app (up-to-date versions, that is), e.g., the iHandy level app, the upper right corner's icon allows you to switch directly between them without launching them from the Home Screen.

I continue to prefer John Haney SW's flashlight app, but you never know when you'll need to signal S.O.S....

Interestingly, on 1/4/12, Adam C. Engst commented that "Apple is rejecting flashlight apps because there are too many in the App Store already", which seems both plausible and a good thing for consumers.

Friday, December 23, 2011

Gender of spoken pronouns in Chinese

In English there is a clear spoken difference between he and she (and also between him and her), but the sound for both (tā) is the same in Chinese. In Chinese, pronouns also don't change if they are used as subjects or objects, so he=him and she=her.

On one occasion I was talking with a native Chinese speaker, Ms. A (甲小姐; jiǎ xiǎojiě). My understanding was that all of the persons she mentioned were also native Chinese speakers.

Ms. A was telling me about Ms. B (乙小姐; yǐ xiǎojiě), who had been entertaining her friend Ms. C (丙小姐; bǐng xiǎojiě) at home when Mr. D (丁先生; dīng xiānsheng) called. It seemed that Ms. B might have been interested in the possibility of exploring a relationship with Mr. D. However, he seemed to have become less enthusiastic about such a possibility after he learned that Ms. B's friend was there -- someone whose gender could not be determined from what Ms. B said over the phone, because 他 (tā) sounds the same both for a male and for a female (even when the female-only 她 (tā) is used for women -- which is only some of the time, in my experience).

On another occasion I was speaking with a native Chinese speaker with whom I periodically use a mixture of Chinese and English. This person was mentioning a transgendered person, and started with something like, "我不知道應該用 he 還是 she."
("Wǒ bù zhīdào yīnggāi yòng he háishi she."; "I don't know if I should use he or she.")

I said with a smile, "用 tā 吧!"
("Yòng tā ba!"; "Use the-Chinese-pronoun-with-the-sound-tā-from-which-gender-cannot-be-determined!")

Saturday, December 17, 2011

Opera Mini vs iOS 5 Safari

This entry is originally being written to compare Opera Mini 6.5.1 (1/16/12: I upgraded to 6.5.2 and have noticed no problems with it.) with iOS 5.0.1 Safari, primarily on an iPod, although some non-iPod comments may be included.  This entry will likely get updates, either unadvertised or advertised-with-dates, over time.  I mostly read text while browsing the web on my iPod, which is probably one reason why Opera Mini works so well for me.  I have little to say about images and videos in Opera Mini.

My earlier blog entry about Opera Mini 6/6.0.1 vs iOS 4 Safari.

The free Opera Mini web browser is an alternative to Apple's Safari browser, with various pluses and minuses. Wikipedia has a decent article on it:, which also links to the interesting A list of technical specifications can be found at:  Version 6.5.1 was released on 11/14/11, with some fixes for 6.5, which was released a little while earlier.  Version 6.5.2 was released 1/11/12.

Opera Mini has long been my primary browser for my iPod (and later, iPad, too).  An iPod is typically connected to the Internet less often than an iPhone, so some of the following items (e.g., Saved Pages) are more significant for iPod users like myself.

  • Opera Mini does not automatically reload a page when you tap the back arrow to return to it, at least if you return within "some" period of time (about whose duration I cannot be more specific).  Thus, if you are reading a page which has multiple links to other pages, e.g., Google News, then tap to read an article, returning to the original page will often not invoke (frequently pointless and time-wasting) reloading, unlike in Safari. Also, if you load pages into different tabs while you have Internet access, but later lose that access, you can sometimes still read those pages, even without having stored them as Saved Pages. If you switch back to or restart Opera Mini, it does not attempt to reload pages fresh from the Internet; if it still "remembers" them (which apparently is not always), it gives you back what it last had for their content. Interestingly, Google News now seems to reload on rare occasions, which I do not remember happening previously; that could be because of changes in Opera Mini and/or at Google News.  Available RAM issues mentioned below may still be applicable.
  • Unlike in Safari, you don't have to switch away from the current tab to open new pages, because you can open links in background tabs (tap-hold, then tap on "Open in New Tab"). This is helpful while, e.g., reading through all headlines in Google News, allowing you to open all stories you'd like to read in background tabs. Available RAM issues mentioned below may still be applicable.
  • Unlike Safari, Opera Mini allows saving of static copies of web pages on the iPod, letting you read or reread them later even without wireless Internet access. That can be useful to save pages for recipes, technical reference, humorous articles, or for any other reason, e.g., because you don't have time to read them right away.  Safari's Reading List saves URLs (across all iOS devices sharing the same Apple ID), but still requires an Internet connection to view those pages.
  • At least 15 (someone else can test for the maximum number...) tabs are possible in Opera Mini, exceeding Safari's limit of 8. RAM constrains the total number of tabs effectively usable. "The page has been cleared to save memory." message is what you are left with content-wise on a tab when you run low on available RAM.
  • Using Single Column View ensures that, because of its size, text will be pleasantly readable in portrait mode, at least for me. is a chess blog which I often read. In Safari, I normally need to "spread" or switch to landscape mode to make the text more legible, but the text has always been fine to read right away in portrait mode in Opera Mini.
  • If you make an account on Opera's servers, you can use Opera Link to determine at what frequency to save both your (up to 9) Speed Dial targets and your bookmarks there, for future restore (e.g., in case of a serious crash) or for sharing on another device(s), including on a pc.  Automatic syncing is possible, but I prefer to sync bookmarks manually, which avoids attempts to connect to Opera's servers when you know (or perhaps, even when you don't know) that you lack wireless Internet access.  Opera Link can also be used at any time on any Opera Mini instance device, so it is not linked inextricably to an Apple ID like iOS 5 Safari's Reading List. Although I didn't test this, it appears that if you use desktop Opera, there is supposedly an Opera Mini folder for bookmarks, which is the extent of the bookmarks that get synced with Opera Link.
  • The location box now has a star which is a shortcut to bookmark a URL; this portion of the star's functionality is actually only achieving parity with Safari.  You can also still bookmark a URL the older, slower, but more functional way as well.  The star's bonus is that if you are viewing a previously-bookmarked page, the star is yellow, indicating its already-bookmarked status.  This can help you avoid unintentional duplicate bookmarks, though maybe you'd want to bookmark a URL in more than one bookmark folder. A drawback of using the star shortcut to bookmark a URL is that you do not have the option of using something other than the web page's HTML title as the bookmark's title.  One news site that I frequently use often doesn't include useful page titles, so I would want to edit in something useful if I were to bookmark such a page.  Since bookmark names are limited to less than the width of the iPod screen, I also might want to edit out words with no real identifying value from some page titles when creating a Bookmarks -- I need to be able to identify each by the short text.
  • After being forcibly ejected from RAM (by the user), Opera Mini starts up with the page data it previously had.  This does mean, however, that you cannot close multiple tabs at once, which I consider a favorable trade in functionality.
  • Opera Mini's x cancel button is bigger than Safari's, and is spaced farther away from other things you wouldn't want to hit. Better for those times when you've inadvertently tapped on a link which is still loading, but in whose content you actually have no interest.
  • Opera Mini does not provide end-to-end encryption. If you want to avoid putting your sensitive data in their company's hands, don't use Opera Mini for anything requiring credentials or anything to which you're concerned about them having potential access. (I blogged this using Safari on my iPad, and made subsequent small edits using Safari on my iPod.)
  • There is a short startup delay as it makes the connection to the Opera proxy servers ("calls home"), and apparently also retrieves your local settings.
  • Presumably because of the Opera proxy server, has extreme difficulties using effectively; I strongly advise using Safari for that. Even Safari cannot yield copyable text, though.
  • On rare occasions, my initial attempt to bring up a page doesn't succeed, which I imagine is an Opera proxy server issue.
  • Opera's proxy servers may lead to this side effect:
    Going to, e.g.:
    prompts you with:
    It looks like you are from outside the U.S. Would you like to make International your default edition? Yes | No Close
    which I chose to simply ignore.
  • Records of chess games using figurine notation in ChessBase website articles like are not, for all practical purposes, readable in Opera Mini, which does not render figurine notation properly.  For this particular game, Alejandro Ramirez the annotator apparently used (non-figurine) algebraic notation for his handwritten notes, but copied and pasted in figurine notation from complementary analysis generated by a computer chess program.
  • Only Safari can Add to Home Screen, using apple-touch-icon.png  when available (not favicon.ico, as it turns out; according to  Opera Mini's Speed Dial is a substitute, which I actually find more helpful because all 9 are in the same place.  If you were to bookmark multiple pages in Safari, that would create additional icons on your Home Screen which are less likely to all be in the same location.
  • When using Single Column View, some items which might typically (as viewed, e.g., while not using Single Column View, or in Safari) be unobstrusive on the side of a web page may appear, sometimes as a large clump, at the top or bottom. I have gotten used to that, and simply swipe to get past the clump, if it's at the top, to get to the real content, e.g., on This conveniently means that I typically don't even have to see any advertising which ends up in a bottom clump.
  • Find in Page: The Done button means done with searching; search happens as you type. Can search repeatedly in a page. Safari can find in page also, although it's probably somewhat less intuitive; see, e.g.:
  • If a tab's pages started from the Start Page, you can return directly to the Start Page (the first page viewed in that tab) by tapping the O ("Opera") button, then tapping Start Page. If a tab's pages never included the Start Page (because the tab was created with "Open in New Tab"), there is no access to it within that tab.
  • 9/4/11: Power-User settings are available by going to config: in the location bar, as described further on, which I just discovered. Changes likely survive Opera Mini crashes. For my own usage, I turned off the Phonenumber detection, which I suspect is probably only of use if (a) you have an iPhone (which I don't), and want to call such a number immediately, or (b) you normally use iOS assistance to add new contacts (which I don't, for reasons mentioned here).
  • On an iPad under iOS 5.0.1, I updated Opera Mini 6.0.1 to 6.5.1 on two separate occasions (I reverted to 6.0.1 after the first time), but could no longer save pages.  In between those two attempts, I was surprised to see 6.5.1 successfully save pages on an iPod running iOS 5.0.1.  I decided to sacrifice my iPad's Opera Mini saved pages, delete the 6.0.1 entirely, and download a fresh Opera Mini 6.5.1 (3rd installation), which allowed me to save pages.
  • Opera Mini's Single Column View trumps Safari's Reader, in my opinion.  Particularly on the iPod, why wait to have something drawn (or partially drawn) before you can activate Reader, when all the while you can see that the text will be too small to read (without the Reader enhancement)?  Just go directly to the readable version, all the time, with Opera Mini's Single Column View.  I once saw a page with ads in the middle of the article and the Reader rendition ended at the ad.  I can't reproduce that now with the same page, but regardless, I prefer to maximize my chances of getting all the text the first time, legibly, as fast as possible.  Safari's Reader remains helpful any time you are in Safari and are confronted with too-small-to-read text, e.g., when clicking on a link in e-mail, which will open in Safari (unless you have jail broken your iPod to configure a different default browser, which I think is possible).
  • When using tap-hold ("Long-click" in the Opera Mini help) to select text, Opera Mini selects the word closest to your position and displays a beginning and end marker, each of which you can drag to change the text selected.  When done, you tap Select and choose from Copy/Search/Search With...(and Go to Address... if the selection is a single word).  As far as I have been able to tell, Safari does the same kind of initial selection in mobile sites, but the choice (no need to tap an additional Select) is Copy (and Define if the selection is a single word).  For non-mobile sites, Safari selects the paragraph closest to your position and displays 4 markers (top, bottom, left, right) which you can drag to change the text selected.  I'm not sure if I've ever needed to do anything but Copy after selecting text; if I do, I'll try to add that detail.  Opera Mini may also behave differently when not using Single Column View, but that is left as an exercise for the reader; I always use Single Column View.
  • The Single Column View option no longer exists under Settings on the iPad, if it was actually there in earlier versions, which I can no longer remember.

Monday, December 12, 2011

Gender of nouns in French and Spanish

In French and Spanish, nouns (I'm excluding pronouns here), including inanimate objects, have a gender associated with them, unlike in English.  In English one does not say that the chair is feminine or that the pencil is masculine, but one does so in French (la chaise; le crayon) and in Spanish (la silla; el lápiz).

In a French class years ago, one English sentence assigned for translation into French included "casbah".  That word had become rather more well-known from the Rock the Casbah song by The Clash.  That being pre-World Wide Web times, we students rummaged through assorted paper dictionaries, and it seems that I, along with every other student, came up with nothing.  It further seemed that we all followed our instincts (which in retrospect seem to have had no logical underlying rationale), and gave it a masculine gender ("le casbah"), only to all simultaneously groan while correcting each others' translations as the professor told us (with a wry smile of satisfaction?) that it was la casbah (feminine).

In French some word endings normally indicate a particular gender.  Words ending in -ette, for instance, are almost always feminine.  However, I will never forget that le squelette (skeleton) is masculine, having read in Harper's Grammar of French (a very nice book!) years ago that it is one of the rare exceptions.

In French some nouns have different meanings in a masculine versus a feminine form.  Tour can be masculine or feminine.  One meaning of le tour is turn; one meaning of la tour is tower.  I'm not sure if there are similar such words in Spanish, though I think I will ask a native speaker soon....

Sunday, December 4, 2011

Update an app but retain option to revert to older version

Data you save for an app might not be able to be restored (it really depends on how the app stores data) if you restore the app using this technique.  If that data is valuable enough, you may be obliged to never revert from the update of such an app.  Your need to continue using your already-saved data may force you to accept any changes in behavior of an app's new version, even if you could revert the app itself.

The following steps using PC iTunes over USB cable enabled me to revert to Opera Mini browser 6.0.1 after a quick, disappointing test of 6.5.1 on an iPad running iOS 5.0.1, and should work the same way on an iPod.

The following presumes the iOS device is normally using iCloud backup, and also that Opera Link was previously used to save bookmarks and Speed Dial targets.  Other apps may have other customization steps akin to Opera Link.
  • Disable backup to iCloud on device (I overlooked this precautionary step in my test).
  • Disable backup to iCloud on device within PC iTunes (if needed).
  • Backup device via USB cable to PC iTunes.
  • Update app on iOS device over wireless.
  • Test updated app on iOS device.
    12/7/11:  If you are going to test the app for an extended time, DO NOT leave the app on the device when syncing the device with PC iTunes before completing testing, because the sync will wipe out your old version of the app in PC iTunes.  If you are saving any data with the new version of the app, you're going to have to give it all up should you need to delete the app for this scenario.  I overlooked this when I was testing 6.5.1 on my iPod, so I lost my 6.0.1 version in PC iTunes, but fortunately 6.5.1 turned out to be a superior replacement.
  • If you prefer the older version of your app, delete the updated app from iOS device, then manually copy the older version back to the iOS device within PC iTunes.
  • Use Opera Link to restore bookmarks and Speed Dial targets (the latter will get up-to-date page images).
  • Disable Opera Link (unless you normally keep it enabled).
  • Move the (restored) Opera Mini icon to your desired Home Screen location.
  • Re-enable backup to iCloud on device.
  • Re-enable backup to iCloud on device within PC iTunes if needed.

Remember that PC iTunes can save (specific versions of) apps even if they later get removed from the App Store.  Some apps are removed because they are replaced by a newer version, and some get totally removed (often enough without explanation).  I haven't tested, but something like the above likely works from iCloud backup, except perhaps for apps removed from the App Store.

6/25/12: The following (or something close to it) is behavior I observed a while back during testing, which is quite logical but caught me by surprise:
If you have multiple iOS devices syncing with the same PC's iTunes, be careful with any app which is a Universal Binary (same app runs on both iPod/iPhone and iPad size screens, making full usage of the two respective screen sizes) which you use on all devices. If you update it on one device and sync that device with the PC's iTunes, the other device(s) will also get that app updated to the newer version when it syncs with that PC's iTunes.

Saturday, December 3, 2011

iOS third party apps you may not wish to update

(Last updated, in whole or in part, on 10/28/13, when I was using iOS 5.1.1. Intended to be updated over time.)

Newer versions of apps sometimes function worse than their predecessors. Sometimes existing functionality is taken away or is changed in an undesirable way (sometimes breaking entirely).

Below are apps for which I consider or have reason (e.g., App Store reviews) to suspect that a non-current version(s) worked better. Having been burned in the past, in the App Store app's Updates section I long ago stopped using the Update All button in favor of updating apps individually. If this list grows too large for me to remember easily, it will be handy for me to check against when updating apps, to reduce the chance of updating an app for which I prefer an older version.

If an older version of an app works well, and there is no compelling or interesting new functionality offered in its newer version(s), I would not likely bother with much testing of newer versions. If someone using a newer version of any app listed below finds my comments about functionality to be incorrect, I would welcome a comment to that effect, which could prompt me to do additional testing and potentially revise this list.

If you made a backup of the iOS device to PC iTunes before updating an app on the iOS device, deleting the new version of the app (e.g., if you don't like it) from the iOS device, then using PC iTunes you should be able to get the older version back via either direct copy or sync (my Opera Mini 6.5.1 test on an iPad). If you don't take such precautions, you could be locked into the new version.  (10/28/13: has good information, and you can do a Google search for "recover old ios app .ipa", which is how I found that web page.)

I haven't investigated to what degree iCloud backup can be similarly helpful (as PC iTunes) for such things, but my understanding is that if the App Store no longer has an app, you will not be able to get it back from there. I have several free apps which are no longer in the App Store, but which I can still restore to my iOS devices from PC iTunes, including:
  • CEDictionary 1.0 (Chinese English dictionary which speaks pronunciation)
  • Go To There 1.1 (retrieves and formats public transportation information)

iOS 5:
  • Convert Units for Free - #1 Unit Conversion App 4.0. Version 4.1 was released 2/28/12, and the 5 "Most Helpful" reviews are all 1 star out of 5. Based on the content of those reviews, ads have proliferated wildly in the app. 14 of the 31 ratings are 1-star, outgunning the 11 that are 5-star. If those reviews are on the mark, its advertised "#1 Unit Conversion App" status is likely in jeopardy (if that was accurate in the first place, of course).
  • Flashlight (my blog entry) 5.1 This is the app from John Haney Software, which became Apps from Outer Space when 5.2 was released. 5.2 seems to have a slightly longer delay before the flashlight effect, which is a net negative since I want bright light as soon as possible. I expect I'd still choose 5.2 over other flashlight apps, but I plan to stick with my 5.1.
  • Google Search 2.5.2 Version 3.0.0, released 4/29/13, "[n]ow turns on Location Services. Even though the icon stays on, the app has minimal battery impact." While the calmer reviews in the Apple App Store seem to agree, the ones decrying the truth of that make me a bit leery of upgrading.
  • How to Tie a Tie Free 4.0 Some App Store reviews suggest that version 4.1 may now hammer you frequently to rate it, and provides a pre-written 5-star review for you to approve. No, I haven't rated it, but I also haven't truly used it to tie a tie, either, despite having loaded it quite some months ago, and only ever knowing one lame-looking knot. I don't need to be browbeaten to rate this app.
  • Mercury Web Browser Lite (my blog entry) 5.1 didn't show ads on the iPod.
    5.2 does show ads, though not continuously. I would probably not have upgraded, but I was dealing with a version problem with a different app when I synced with PC iTunes, and I hadn't paid enough attention to this app, which I use relatively rarely.
    5.2.1: The company's write-up in the App Store says "Remove ads for iPhone version". A review claims that 5.2.1 also took away User Agent spoofing, which can be pretty useful.
    I bought the paid version, which still has the User Agent spoofing. The developers have done good work, certainly worth 99 cents!
  • Mercury Web Browser Pro (my related blog entry) 6.0.1 preserves the last used brightness setting into the next session. A review claims that 7.0 starts up at full brightness, which night readers are likely to find undesirable.
  • Notespark 1.3.2 Version 1.4 (AND/OR possible changes on their server?) caused loss of data when I synced (I only sync manually) on at least half a dozen occasions in fewer than two months of daily (or practically daily) usage. I count myself very fortunate to have been able to revert back to 1.3.2, and will be watching to see whether I encounter similar loss of data now -- the syncing was virtually flawless for years before I (temporarily) upgraded to 1.4. (10/28/13: Notespark has been removed by the developers from the Apple App Store.)
  • ShuBook 1.4.2 appears to be markedly preferable to later versions. Some App Store reviews slammed version 2.0.
  • (my blog entry) 2.1.1 Some App Store reviews for 2.1.2 and 2.1.3 have made me leery of updating. The app works fine for me already, and supposedly there are some new legal agreement issues. Also, the 11/24/11 App Store review of 2.1.3 from joekul claimed that the history (of WiFi speed test results) feature went missing. I don't have specific plans to verify that; 2.1.1 still has that history, which is of some value to me.
  • The Weather Channel (my blog entry) 4.1.1 Some App Store reviews for the subsequent version have made me leery of updating. It sounds as if the ads have gotten more and more in your face (flashing, it seems) without meaningful gains in functionality.
  • Weather+ Free 1.6 includes forecasting of humidity levels for the coming days (accuracy not guaranteed, of course!). Version 2.0 (updated 6/21/12) no longer has that functionality. That functionality also seems to have disappeared in the paid version 2.02 (also updated 6/21/12), based on what I see in Apple's App Store.
  • White Noise 5.4.2 The 5.5.1 update introduced a bug which prevents the alarm from sounding if you are using the Music Alarm Event (through which you select Music from your device's Songs collection to which to wake up). Also, I prefer the fake big LED clock digits of 5.4.2 over the slim digits of 5.5.1. With 5.4.2, I already have all the functionality I need from this app, so there's really no significant utility in updating further (indeed, there is risk, as I discovered with 5.5.1).
  • Yahoo! 2.3.8 At least two Apple App Store reviews suggest that in 3.0 (released 4/22/13), they removed Mail from the menu, which I use to mark messages as spam. The Yahoo! Mail app, which they suggest you use instead, requires iOS 6. I'm staying with iOS 5 as long as possible for multiple reasons, one of which is because the accompanying text for podcasts is truncated in iOS 6 (and was initially truncated from the Podcasts app in iOS 5).
    They had previously removed Mail from the menu in version 2.3.7, but with 2.3.8 (released 3/22/13), they restored it due to "popular demand" ("popular outrage" might be more accurate). Given the history, I can't muster any enthusiasm to even bother trying version 3.0.

iOS 4 (I'm only listing a couple of apps and am unlikely to add more, since I'm in the iOS 5 world now):
  • OverDrive Media Console (my blog entry) 2.3.2 Version 2.3.3 apparently introduced a bug that prevents download of e-books to the iPod under iOS 4.3.5. It may even wipe out existing e-books, but I cannot confirm that.
    (Version 2.3.3 can, however, download e-books to the iPod under iOS 5.)
  • Stanza (my blog entry) 3.1 Version 3.2 of Stanza doesn't work under iOS 4.
    (Version 3.2 is needed under iOS 5, which would not run 3.1.)